Step 1: download this file. I already renamed it for you.
Step 2: Place into your SD card. Make sure it isn't in any subfolders
Step 3: Turn phone off
Step 4: Hold down Vol down and camera as you power on the phone
Step 5: The update should automatically be found and install
Step 6: Reboot phone
These are the stock directions. I believe this is flashable with Clockwork Recovery if you snagged that. This will not work if you're using a modified kernel or missing Sprint Apps. You must restore both to factory before updating. If you've simply rooted, this update will not mess up your root.
Step 2: Place into your SD card. Make sure it isn't in any subfolders
Step 3: Turn phone off
Step 4: Hold down Vol down and camera as you power on the phone
Step 5: The update should automatically be found and install
Step 6: Reboot phone
These are the stock directions. I believe this is flashable with Clockwork Recovery if you snagged that. This will not work if you're using a modified kernel or missing Sprint Apps. You must restore both to factory before updating. If you've simply rooted, this update will not mess up your root.